I am not going to bother looking for it. I'm quite happy with the UNC 1921 aunc that I have. Last time I remember seeing a banged up XF, scratched etc for 100usd, you know how much more expensive a XF or UNC will cost you.
Edit:
Example on Molotok:
http://molotok.ru/catalog/lot/14120672 Dinged etc, at least 60USD. Not worth it.
Real UNC with different mintmasters:
http://molotok.ru/catalog/lot/14137951 And that's REALLY expensive. I don't think you want to know the price - there is a bid on that too.